langchain

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Adrián Panella 3933a4abc3 core(mermaid): allow greater customization (#29939 )

Adds greater style customization by allowing a custom frontmatter
config. This allows to set a `theme` and `look` or to adjust theme by
setting `themeVariables`

Example:

```python

node_colors = NodeStyles(
    default="fill:#e2e2e2,line-height:1.2,stroke:#616161",
    first="fill:#cfeab8,fill-opacity:0",
    last="fill:#eac3b8",
)

frontmatter_config = {
    "config": {
        "theme": "neutral",
        "look": "handDrawn"
    }
}

graph.get_graph().draw_mermaid_png(node_colors=node_colors, frontmatter_config=frontmatter_config)
```


![image](https://github.com/user-attachments/assets/11b56d30-3be2-482f-8432-3ce704a09552)

---------

Co-authored-by: vbarda <vadym@langchain.dev>

2025-03-21 18:25:26 -04:00

__snapshots__

core(mermaid): allow greater customization (#29939 )

2025-03-21 18:25:26 -04:00

__init__.py

…

test_concurrency.py

core: Make abatch_as_completed respect max_concurrency (#29426 )

2025-02-07 16:51:22 -08:00

test_config.py

core: Bump ruff version to 0.9 (#29201 )

2025-01-22 00:20:09 +00:00